Stickers are the easiest way to go. Whether you print out your own onto sticker paper or buy them from reprolabels.com or TFStickers.com just peel them off and stick them down.

My preferred way probably isn't everyone's favorite but I'd rather waterslide decals. It requires you to wet the decal and slide it off the backing paper and can be hard to manipulate into place but I find they're more durable and less prone to peeling off than sticker.

Painting that level of detail by hand is not attainable by anyone on this board. Don't even try.